获取硒中页面对象元素的空值

Question

我正在一个基于黄瓜，TestNG，基于硒的项目中工作，并且我的PageObject页面如下

package com.testing.pageobject;

import java.util.List;

import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.support.FindBy;
import org.openqa.selenium.support.PageFactory;

import com.testing.components.SearchResultComponent;
import com.testing.stepdefinitions.BaseClass;

public class ShoppingPage extends BaseClass {



    public ShoppingPage(RemoteWebDriver driver) {
        super();
        this.driver=driver;
        PageFactory.initElements(driver, this);

    }

    @FindBy(xpath="//div[@class='sh-dlr__list-result']")
    private List<SearchResultComponent> SearchResult;

    @FindBy(xpath="//span[@class='qa708e IYWnmd']")
    private List<WebElement> ResultListView;

    @FindBy(xpath="//span[@class='Ytbez']")
    private List<WebElement> ResultGridView;

    public List<SearchResultComponent> getSearchResult() {
        return SearchResult;
    }

    public List<WebElement> getResultListView() {
        return ResultListView;
    }

    public List<WebElement> getResultGridView() {
        return ResultGridView;
    }   

}

以及我的组件页面如下

package com.testing.components;

import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.support.FindBy;
import org.openqa.selenium.support.PageFactory;

import com.testing.stepdefinitions.BaseClass;

public class SearchResultComponent extends BaseClass {



    public SearchResultComponent(RemoteWebDriver driver) {
         super();
         this.driver=driver;
         PageFactory.initElements(driver, this);
    }

    @FindBy(xpath="//a[@class='AGVhpb']")
    private WebElement productName;

    @FindBy(xpath="//span[@class='O8U6h']")
    private WebElement productPrice;

    @FindBy(xpath="//div[@class='vq3ore']")
    private WebElement productStars;

    @FindBy(xpath="//img[@class='TL92Hc']")
    private WebElement productImage;

    @FindBy(xpath="//div[@class='hBUZL CPJBKe']")
    private WebElement productDescription;

    public WebElement getProductName() {
        return productName;
    }

    public WebElement getProductPrice() {
        return productPrice;
    }

    public WebElement getProductStars() {
        return productStars;
    }

    public WebElement getProductImage() {
        return productImage;
    }

    public WebElement getProductDescription() {
        return productDescription;
    }




}

我的黄瓜步骤定义是

@When("search for product less than {int}")
public void search_for_product_less_than(Integer int1) {
    ShoppingPage myshopping = new ShoppingPage(driver);
    List<SearchResultComponent> SearchResults = myshopping.getSearchResult();
    for(SearchResultComponent myResult:SearchResults) {
        System.out.println(myResult.getProductName());
    }
}

问题陈述：

当我尝试在步骤定义中获取getSearchResult（）时，出现零点错误。不知道为什么有什么想法要解决这个问题？

Answer 1

原因是在页面中找不到所需的元素。这可能有不同的原因。

1）如果尚未加载带有new ShoppingPage(driver)的页面片段，则调用"//span[@class='qa708e IYWnmd']"的时间过早。

2）可能是XPath定义不正确，并且页面上没有这样的元素。检查您的XPath。